Hi,
I want to protect some digital inputs going to a Atmega128, I don't really need opto-isolators but I do want some protection.
I have attached a schematic I found with protection but I'm not really sure if it's correct and why there is a difference?
Anyone help with an example?
P.S. It's for a automotive application so voltage range is 12v-30v and a possible high current supply.
Thx
Steve
I want to protect some digital inputs going to a Atmega128, I don't really need opto-isolators but I do want some protection.
I have attached a schematic I found with protection but I'm not really sure if it's correct and why there is a difference?
Anyone help with an example?
P.S. It's for a automotive application so voltage range is 12v-30v and a possible high current supply.
Thx
Steve